class Restaurant:
    def __init__(self, restaurant_name, cuisine_type):
        self.restaurant_name = restaurant_name
        self.cuisine_type = cuisine_type
        self.number_served = 0

    def describe_restaurant(self):
        print('The restaurant name is ' + self.restaurant_name + '.')
        print('The cuisine type is ' + self.cuisine_type + '.')

    def open_restaurant(self):
        print(self.restaurant_name.title() + ' is open now.')

    def set_number_served(self, number_served):
        self.number_served = number_served

    def increment_number_served(self, increment):
        self.number_served += increment


restaurant = Restaurant('Kentucky Fried Chicken', 'frying')
print(restaurant.number_served)
restaurant.number_served = 10
print(restaurant.number_served)
restaurant.set_number_served(20)
print(restaurant.number_served)
restaurant.increment_number_served(30)
print(restaurant.number_served)
